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Commitments and Contingencies - Narrative (Details) $ in Billions | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Oct. 25, 2024 aircraft | Oct. 24, 2024 USD ($) aircraft | Sep. 30, 2024 USD ($) aircraft | Jul. 31, 2024 aircraft | Sep. 30, 2024 USD ($) aircraft | Sep. 30, 2024 USD ($) aircraft
Aircraft |  |  |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |  |  |
Capital commitments remainder of 2024 | $ |  |  | $ 1.6 |  | $ 1.6 | $ 1.6
Capital commitments in 2025 | $ |  |  | 1.8 |  | 1.8 | 1.8
Capital commitments in 2026 | $ |  |  | 1.8 |  | 1.8 | 1.8
Capital commitments in 2027 | $ |  |  | 2.6 |  | 2.6 | 2.6
Capital commitments in 2028 | $ |  |  | 2.9 |  | 2.9 | 2.9
Capital commitments in 2029 | $ |  |  | 2.5 |  | 2.5 | 2.5
Capital commitments thereafter | $ |  |  | $ 2.7 |  | $ 2.7 | $ 2.7
Aircraft | Subsequent Event |  |  |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |  |  |
Capital commitments in 2025 | $ |  | $ 2.0 |  |  |  |
Capital commitments in 2026 | $ |  | $ 1.9 |  |  |  |
B737-8 |  |  |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |  |  |
Number of aircraft deliveries | aircraft |  |  |  |  | 9 | 19
Number of aircraft orders converted | aircraft |  |  |  | 2 |  |
B737-8 | Subsequent Event |  |  |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |  |  |
Number of aircraft deliveries | aircraft | 1 |  |  |  |  |
Number of aircraft orders converted | aircraft |  | 9 |  |  |  |
B-737-700 |  |  |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |  |  |
Number of aircraft retirements | aircraft |  |  |  |  | 14 |
B-737-800 |  |  |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |  |  |
Number of aircraft retirements | aircraft |  |  |  |  | 1 |
B737-7 |  |  |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |  |  |
Number of aircraft options exercised | aircraft |  |  | 4 | 2 |  |
B737-7 | Subsequent Event | Year 2025 |  |  |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |  |  |
Number of aircraft options exercised | aircraft |  | 5 |  |  |  |
B737-7 | Subsequent Event | Year 2026 |  |  |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |  |  |
Number of aircraft options exercised | aircraft |  | 1 |  |  |  |

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